ProActivity.java

package com.example.csd;

import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.PopupMenu;

import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.PopupMenu;
import android.widget.TextView;

public class ProActivity extends MainActivity {
    private WebView webView;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_pro);

        webView = (WebView) findViewById(R.id.webView);
        webView.setWebViewClient(new WebViewClient());
        webView.loadUrl("https://www.csd.auth.gr/news/schedules/");

        WebSettings webSettings = webView.getSettings();
        webSettings.setJavaScriptEnabled(true);


        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }


    @Override
    public void onBackPressed() {
        // Go back in the WebView if possible
        if (webView.canGoBack()) {
            webView.goBack();
        } else {
            super.onBackPressed();
        }
    }
}